It is very important to do keyword research For
a blog or website before
you start writing a post. Keyword research will let you know
which topic is people wanting to read about and are being actively searched
for in search engines like Google, Yahoo, MSN and etc.
This is essential because if you want to get traffic from search engines then
you must be knowing what topics people search for in search engines.
Then you need to write posts on those topics.
To know which topics are hot in a particular niche
you can take help of tools such as Google Adwords Keyword Tool,
Google Trends, Yahoo Buzz Index or Wordtracker etc.
These tools will also help you to find out
the exact number of times different keyword phrases or search terms that
the people use to obtain or search information on a particular topic.
so,Keyword Research is must for very bloger or webmaster.